Maneurop® reciprocating compressors

Application guidelines
Single phase electrical characteristics
Electrical connections and wiring
LRA - Locked Rotor
Current (A)
MCC - Maximum Continuous
Current (A)
Winding resistance (Ω)
( ± 7 % at 68° F)
Motor Code 1 5 1 5 1 5
Winding run start run start
MT/MTZ018 51 40 13 10 1.36 4.82 1.80 4.70
MT/MTZ022 49.3 41 17 15 1.25 2.49 1.78 4.74
MT/MTZ028 81 51 25 20 0.74 1.85 1.16 3.24
MT/MTZ032 84 70 26.5 20 0.64 2.85 0.90 4.30
MT/MTZ036 84 60 30 22 0.64 2.85 0.89 4.35
MT/MTZ040 99 - 34 - 0.53 2.00 - -
MT/MTZ044 97 - 31 - 0.45 1.90 - -
MT/MTZ050 114 92 36 29 0.37 1.79 0.52 2.65
MT/MTZ056 136 - 42.5 - 0.32 1.61 - -
MT/MTZ064 143 - 46 - 0.32 2.10 - -
Nominal capacitor values and relays
* PSC: Permanent Split Capacitor
CSR: Capacitor Start Run
(1) Run capacitors: 440 volts
(2) Start capacitors: 330 Volts
50 Hz
60 Hz
Models
PSC/CSR*
CSR only
Run capacitors (1) Start capacitors (2)
(A) µF (C) µF (B) µF
MT/MTZ018 JA-5 20 10 100
MT/MTZ022 JC-5 20 10 100
MT/MTZ028 JE-5 20 10 100
MT/MTZ032 JF-5 25 10 135
MT/MTZ036 JG-5 25 10 135
MT/MTZ050 HK-5 30 15 135
MT/MTZ018 JA-1 15 10 100
MT/MTZ022 JC-1 30 15 100
MT/MTZ028 JE-1 25 25 135
MT/MTZ032 JF-1 25 20 100
MT/MTZ036 JG-1 25 20 100
MT/MTZ040 JH-1 35 20 100
MT/MTZ044 HJ-1 30 15 135
MT/MTZ050 HK-1 30 15 135
MT/MTZ056 HL-1 35 20 200
MT/MTZ064 HM-1 30 25 235
Start relay
3ARR3J4A4
/RVA6AMKL
3ARR3J4A4
/RVA6AMKL
Trickle circuit
PSC wiring
CSR wiring
The trickle circuit provides the facility of
heating the compressor crankcase by feeding
a small current to the auxiliary winding
and the run capacitor (See the drawings
page 14.)
By using PSC or CSR starting systems, compressor
models MT / MTZ 018 - 022 can be
PSC wiring may be used for refrigerant circuits
with capillary tubes or expansion valves
with bleed ports. Pressure equalization must
CSR wiring provides additional motor torque
at start-up, by the use of a start capacitor in
combination with the run capacitor. This system
can be used for refrigerant circuits with
capillary tubes or expansion valves. The start
capacitor is only connected during the starting
operation, a potential relay is used to disconnect
it after the start sequence.
The single phase compressor motors are internally
protected by a temperature/current
operated without crankcase heaters as the
heater function is provided by the trickle circuit.
For the larger single phase compressor models
MT / MTZ 028 - 064, the use of the PTC
crankcase heater is recommended.
be ensured before start-up because of the
low starting torque characteristics of this
system.
sensing bimetallic protector, which senses
the main and start winding currents, and also
the winding temperature. Once the protector
has tripped, it may take up to two to four
hours to reset and restart the compressor.
Check that power supply corresponds
to compressor characteristics (refer to
compressor nameplate).
USCO.PC.004.A4.22 13